Down Syndrome ?

A friend of mine is 21 or so weeks pregnant & has just found out her baby might have DS.
During the morphology scan they found 2 cysts at the base of the babies brain. There are no other signs for DS. The thickness of the skin on the back of the neck seems fine, there was nothing said about the bridge of the nose or anything.
Has anyone had experience with this or know the stats? I think that sounds pretty good, but there's apparently also a chance of Turners?? I honestly know nothing about this one, so wouldn't know what else to look for iykwim?
Any reassurance would be kinda helpful right now :)
Thanks guys :)

A good friend of mines sister's baby had fluid around its heart and multiple cysts on her skull. They said it was a strong sign of downs syndrome and she had numerous tests which showed fine but they still said something wasn't right. Turns out her daughter was fine and she is now 2.

I have seen several ultrasounds show cysts on the brain and follow up scans at 32weeks show nothing (cysts are gone) I think they usually offer further testing if the parents wish. Of the scans I have seen with cysts on the brain all the babies have being normal without disablities. The few babies I have seen born with DS have all being unknown before birth and a complete shock one even had the nuchal translucency scan which showed a low risk.

Based on just having two cysts on the brain I would say the risk of DS is still relatively low. I think when more signs are detected like heart problems, thick fluid at the neck etc then that risk is much greater.

Thanks :) Thats good to hear.